186 institutions reported holding BY for 2026Q1, together 56% of the company, more than the 176 a quarter earlier. Institutions reporting a position: 186 (as of 2026Q1). Shares held by institutions: 25.0M, long US equity positions only, as reported on Form 13F. Reported value: $790M, at 2026-03-31 prices, not today's. Top 5 holders: 21%, of the whole company, between five filers.

BYByline Bancorp, Inc.

Financial ServicesUSD

$38.26

$25.4352 weeks$39.80

Who owns BY

186 institutions reported holding BY for 2026Q1, together 56% of the company, more than the 176 a quarter earlier.

186

Institutions reporting a position · as of 2026Q1 · up from 176 the quarter before

Shares held by institutions: 25.0M
Shares held by institutions · 56% of the company · long US equity positions only, as reported on Form 13F
Reported value: $790M
Reported value · at 2026-03-31 prices, not today's
Top 5 holders: 21%
Top 5 holders · of the whole company, between five filers

Details›

Reporting quarter2026-03-31: 2026Q1
Quarters on record: 36
New positions: 22
Positions exited: 18
Added to: 66
Reduced: 54
Top 10 holdersof the company: 30%

Institutional ownership by quarter, 2017Q2 to 2026Q1
Quarter	Filers	Shares	Reported value
2026Q1	186	25.0M	$790M
2025Q4	176	24.4M	$710M
2025Q3	173	24.3M	$675M
2025Q2	169	24.0M	$640M
2025Q1	147	20.2M	$528M
2024Q4	140	20.0M	$581M
2024Q3	138	19.2M	$513M
2024Q2	133	18.6M	$443M
2024Q1	131	18.2M	$395M
2023Q4	128	18.2M	$430M
2023Q3	116	17.8M	$350M
2023Q2	106	18.1M	$327M
2023Q1	111	18.3M	$396M
2022Q4	108	18.2M	$417M
2022Q3	120	17.8M	$360M
2022Q2	113	17.5M	$416M

Largest reported holders, 2026Q1
Holder	Shares	% of company	Value
BlackRock Inc.	3.3M	7.3%	$104M
DIMENSIONAL FUND ADVISORS LP	2.4M	5.3%	$75M
VANGUARD GROUP INC	1.9M	4.1%	$58M
STATE STREET CORP	1.0M	2.3%	$33M
WELLINGTON MANAGEMENT GROUP LLP	1.0M	2.3%	$32M
Robeco Investment Management, Inc.	0.9M	2.0%	$29M
AMERICAN CENTURY COMPANIES INC	0.9M	2.0%	$29M
FMR LLC	0.8M	1.8%	$26M
GEODE CAPITAL MANAGEMENT LLC	0.8M	1.7%	$25M
ARISTOTLE INVESTMENT SERVICES, LLC	0.7M	1.5%	$21M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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